Grain cleaning machinery



Dec. 18, 1934.

` GRAIN CLEANING MACHINERY 47 WIW'I IHIHUI'" 43 44 45 gmc/who@ frm...

5 c. N. HA-r'FlELD f l,985;167

Dec. 18, 1934. c. N. HATFIELD GRAIN CLEANING MACHINERY i 2 Shees-Sheet 2Filed July '1, 1933 WH, um WM..

Imc/whom Patented Dec. 18, 1934 CharlesfN. Hatfield,

sayselrial No.v avessi t eclaims. renate- 133) f- -Appiieation' July 1,I1

, The invention has relation to graincleaning machinery, an' objectbeingA to provide the machinewith a supporting basewherefrorn itniay belifted and wherein itmay" bel insertedtothereby considerably reduce the'cubicf contents for shipment and storage purposes and to protect-themachine in transit. Another object is to render the hopper and theupper'halfV or portion of the u fan" casing removable as a unittotherebyfacilitate' access to the interior of the machine for repair purposes,etc.

the eciency of the machine. Other objectsv and advantages' will appearhereinafter. y y

` The invention consists in the novel construction and combinations ofparts as set' forthin the appendedvclailns.

In the accompanying invention. f l

Figure 1l is a side view of the machine.

l FigureA 2vv is a central` vertic'alsection ofthe invention.

drawings illustrating the Figures isa viewsimiiar to Figure ,1 muimachine liftedfron its supporting base and inserted. W'thi. Sid'baSef YFigure elisa section on line liv-4, Figure'vll.'

. n1 .these drawings, the rxuinemlieesignates the hopper, wherein .thegrain or grainan'd seed are dumped', upper`endof the.chafflscr'eenrv 2,said hopper li'a'v`` by,A a clamping wing nut I5, upon a suitable bolt;

The chaff screen 2 is removably fitted' inthe shoe 6 'andi has adownward, in-

` upper or chaff 33 oline-from said hopper, being providedwith a bottomior grainfboard "I, ,thelatterdischargingupon a deflector 8,securedvto said shoe and having aninclination opposite; to thatof saidscreenand' said grain board. Y The lower or combinationsh '9,has aninclination oppositeltol that ofthe upper' shoe and isadapted to-carrytwo double screens wand 1.1

and one single screen 12'; all slidablymounted therein, therebyprovidingiior handling a variety of; sizes' of' grain, and seed in asingle op'erafti'onA and without changing screens, the discharge' ofgrain or' of grain' and'seed from both'4 screens of;` l themupperdoublescreenbeing' at theA lower end' ofl theshoe at Band-14st opposite4sidesof theshoe, andthe discharge of finer impurities being cen-4trall'yfof Vthe lower end vof'the shoelfat' I5, this dis-` y doublescreen into detachable box' 16,- said-box- 5B havingendl notches 17..'forrrnedv1 the' pr'ojeetmgl Another objectv is' to .increase andwhich,feeds the same tothe ing' a suse gate 3; provided with anfoperratmgihandle iron 4,`adjustment ofwhich is controlled y v n .A oftheseed'andgrainiwithfthe' airblast.

ends' of its b'ottoin, said notches being engagedby ermostor'singlescreen, and fromthe bottom or 5V seedboardlllQf, is throughspouts 20,2l, andy 22', locatedrat'ltlie-low'er endof the lower shoe alongthebottornf thereof, the discharge from" said spoutsfbeing respectivelyl ateachV of opposite sides ofrfthe shoe and centrally `of the shoe. The-fan10r casing 23?,.ha's'; allower air duct or chute 24,'locatedbetweenthe'V upper and lower'shoes, the-bottom 25 of sadduet having a lesserinclination than that of-L the deliector l8 aforesaid;

Thed'e'necto'r 8'lis providedv with a plurality of 15 shallow'roundedvgrooves and intervening ridges 26, 26', being usually made ofcorrugated metal,y the grain or grainl and seed being discharged thereonfr'ornf the upper or chaff screen and tending to some extent toaccumulatefin said' grooves 2O`V outA of the way rofV the air blast,without-however preventing downwardmoveinent of ther grain-and seed inthe shaking of the shoe, thereby releasing sai'ot air blast, which is'consequently more effective inftheremoval ofthe coarserimpur-ities. Thede- 25 ectorlrnoves with theupper `shoe andthepu'shlto the grain andseed in the deflector groovesin the movement of the shoe anddeflectortowards' the' fanadds'tofthe effect of the a'ir blast in the re''rn'oval ofimpurities'. The grooves of the deflec-l 30? toralsol act asabrake'for andlretard' movement? j The'vr machine has twolsupportingstandards 27l I at each side thereof',v composed of upper andilower'sections2'7y and 28, the-'lower of whichjar'ev 35Tv locatedhwithout the" upper sectionsl and' have al connecting cross bar29'foreach couple thereof, the vcross, bars' being@ each of a width equal tothe combined width of both standard sections. 'Ihefupperr standardsections' havel also a con- 4()^VA ard sections' are provided with lowerpins 34 engaging seats ofthe lower cro'ssb'ars and stand*- ardlsections.j j

AThe lower standard sections 28v at each' side ofthe-'machine areprovided-withlinclined braces' 36";5 alreceptacle 317i 'at' the base'of' the machine" 555 shaker bars or levers with rcrank pins 46 vof thesprocket pinions; bars 47 connecting theup-k per ends of the shakerlevers with the upper shoe, the lower ends of the shaker levers havingpivotal connection at 48 with one end of the lower shoe to vibrate thesame, the sprocket gearing being located at one side only of the machineand the other parts stated being located one set at each side of themachine. The shaker levers serve also as suspension or hanger means forthe lower end of the lower shoe, said levers having lower longitudinalslots 49, wherein the pins48 are adapted Vto move in the rfolding upwardof the lower end of the lower shoe to approximately horizontal positionwhen the machine is to be taken down for shipment or storage.

The entire machine is adapted to be lifted from the upper cross bars ofthe lower standard sections andV inserted within the lower standardsections below said cross bars, to thereby reduce the cubic contents ofthe machine and obtain a lower freight rate. The large sprocket wheeland the sprocket chain are of course rst removed..

The lower receptacle 37 at the base of the machine serves to rigidlyconnect the lower standard sections transversely as stated and alsoforms a receptacle to catch seed or grain and to carry extra screens andparts.

If there should be no grass seed in the grain to be cleaned, the lowerdouble screen and the lowermost single screen would be removed.

The hopper 1, has removable or screw connections 50 with theuppersections 27 of the` supporting standards at both ends of the machine,andan upper section 51 of the fan casing compri-singy nearly one half ofthe same, is removable with respect to the lower section of the fancasing, said hopper and said upper section of the fan rcasing beinghorizontally aligned and rigidly connected together by means of integralside frames 452V or in other equivalent manner, whereby the hopper andthe upper section of the 1 fan casing may be readily removed as a unit,to

facilitate accessl to the interior of the fan casing and to the airchute below the upper shoe, bothfthe upper and the lower shoe beingremovable.

I An air deilector 53 is provided in the air chute 24, to regulate theforce of the air blast, adjustment of said deiiector being controlled bya wing nut 54 threaded on an extension of the pivot rod 55 of thedeilector. Y

I claims- 1. In grain cleaning machinery, a hopper, upper and lowervibratory shoes having screens, a fan casing, a fan therein, twosupporting standards at each side of the machine composed each of upperand'lower sections the lower of which are located without the uppersections and having a connecting cross bar for each couple thereof, thecross bars having end notches, the upper sections having reducedextensions fitting in said notches and shoulders resting upon the crossbars, the entire machine being liftable from said cross bars andinsertible within the lower standard sections below said cross bars.

2. In grain cleaning machinery, a hopper, upper and lower vibratoryshoes having screens, a fan casing, a fan therein, means for vibratingsaid shoes including slotted shaker levers, two supporting standards Aateach side of the machine composed each of upper and lower sections thelower of which are located withoutthe upper sections and have aconnecting'cross bar for each couple thereof, said cross bars having endnotches, the upper sections having reduced extensions ttingin saidnotches and shoulders resting upon the cross bars, thelower shoe beingfoldable upwardly to approximately horizontal position to the extent ofthe length of the slots of said levers, the

entire machine being liitable from said cross bars and insertible withinthe lower standard sections below said cross bars.

c 3. In grain cleaning machinery, a hopper, up-

per and lower vibratory shoes having screens, a

fan casing, afan therein, two supporting standards at each side of themachine each composed of upper and lower sections the' lower of whichare located without the upper sections and having a connecting cross barfor each couple thereof, said cross bars having end notches, the upperstandard sections having also a connecting cross bar for each couplethereof, the fan casing have ing an air chute located between the upperand lower shoes and connecting the upper standard sections at the lowerportions thereof, said upper sections having extensions tting in saidnotches and shoulders resting upon the lower cross bars, the entiremachine being liftable from the lower cross bars and insertible withinthe lower standard sections below said cross bars thereof.

4. In grain cleaning machinery, a hopper, up-

per and lower'vibrat'ory shoes having screens, a k

fan casing, a fan therein, means for vibrating said shoesincludingslotted shaker levers, two supporting standards at each side ofthe machine each composed of upper and lower sections the lower of whichare located without the upper sections and havinga connecting cross barfor each couple thereof, saidy cross bars having end notches, the upperstandard sections having also a connecting cross bar for each couple atthe tops thereof, the fan casing having an air chute connecting saidupper sections at the lower portions thereof, said upper sections havingextensions fitting in said notches and shoulders resting upon the lowercross bars, the lowerv shoe being* foldable upwardly to the extent ofthe lengths of the slots of said levers, theentire machine beingliftable from the lower cross bars and insertible composed each of upperand Vlower sections theV lower of which are located without the uppersections and have a connecting cross bar for each couple thereof of awidth equal to the combined width of both sections, said cross barsvhaving end notches, the upper sections having extensionsv engaging saidnotches and shoulders resting upon lsaid cross baracertain of saidextensions having supporting rollers for the upper ends of the lowershoe, the latter being foldable upwardly to the extent of the length ofthe notches of the shaker levers, the entire machine being liftable fromsaid cross bars and insertible within the lower standard sections belowthe cross bars thereof.

6. In grain cleaning machinery, a hopper, upper and .lower vibratoryshoes having screens, a fan casing, a fan therein, means for vibratingsaid shoes including slotted shaker levers forming hangers for the lowerend of the lower shoe, two supporting standards at each side of themachine composed each of upper and lower sections the lower of whichhave a connecting cross bar for each 'couple thereof and are locatedwithout the upper sections, the cross bars being each of a width equalto the combined width of both sections and having end notches, the upperstandardv sections having also a connecting crossv bar for each couplethereof at the tops, the fan casing having an air chute connecting theupper sections at the lower portions thereof, the upper sections havingextensions engaging said notches and shoulders resting upon the lowercross bars, certain of said extensions having supporting rollers for theupper end of the lower shoe, the latter being foldable upwardly to theextent of the length of said slots of the shaker levers, the entiremachine being liftable from the lower cross bars and c insertible withinthe lower standard sections below the cross bars thereof. l.

'7. In grain cleaning machinery, a hopper, up-` per and lower removablevibratory shoes having screens, a fan casing having an air chute locatedbelow the upper shoe, said fan casing having an upper approximatelysemi-cylindrical removable section, two supporting standards at eachside of the machine, said hopper being located entirely above said uppershoe and having removable connection with certain of said standards,said hopper and the upper section of the fan casing being rigidlyconnected, horizontally aligned and'removable as a unit to facilitateaccess to the interior of the fan casing and to said air chute,therearwalls of said hopper forming chamber.

8. In grain cleaning machinery, a hopper, upper and lower vibratoryshoes havingv screens, a fan casing, a fan therein, two supportingstandards at each side of the machine composed each of upper and lowersections the lower of which are located without the upper sections andhaving a connecting cross bar for each couple at the tops thereof, abase receptacle connecting said lower standard sections at the bottomsthereof, said cross bars having having extensions fitting in saidnotches and shoulders resting upon said cross bars, theentire machinebeing liftablefrom said cross bars and insertible within the lowerstandard sections below said cross bars and above said base receptacle.

the front Wall of the fank end notches, the upper sections i 9. In graincleaning machinery, upper and lowver vibratory s hoes having screens, afan casing having an air chute located between and delivering at theapproximated ends of said shoes, the upper shoe having a bottom or grainboard, and a graindeflector located in lsaid air chute at the outletvend thereof below and having inclination opposite to that of said grainboard and delivering to the upper screen of the lower shoe; saidgraindeflector being approximately aligned with the bottom of said airchute and having a plurality of transverse grooves in its upper surfacewherein a portion of the grain and seed being deflected will becollectible and shielded from the air blast to thereby release the airblast.

CHARLES N. HATFIELD.

